Huaying city is a precious land with rich resources of mineral

energy and agriculture

being convenient in transportation and developed in industry and agriculture. As the resources is exploited and taken gradually

the natural ecological environment is being frequently. The main disasters often destroyed

mountain disasters occur seen are these

i

e

soil and water loss

collapsing

slop sliding

debris flow，mountain torrents and so on

which cause great loss in economy，and damage fields and houses terribly every year

threatening the safety and property of the local residents

The harness measures are to stablize the gully slope and sliding mass of the slope

to block the loosening solid material coming from branch ditches and upper reaches

to dredge the channels and protect the section for flood to come through

and to construct new channels in order to lead the mountain torrents and debris flow into predetermined section for the harmfulness to be avoided or reduced.